I dunno. I guess if soldiers want to look at a little porn now and then, go ahead. It's odd to me, though, that the American Family Association is opposed to pornography, because it "rips apart marriages and destroys families", but is not opposed to the Iraq war which, incidentally, rips apart marriages and destroys families:

...Soldiers and Marines' divorce rates have leveled off somewhat at about 3.5 percent, after reaching 3.9 percent in 2004, and are not worse than in the general population — but still above the 2.9 percent of 2003.

Suicide rates reached 17.3 per 100,000 soldiers in the U.S. Army in 2006, not far off from the age-adjusted and gender-adjusted average for the U.S. population on the whole (for males, for example, the rate is 17.6 per 100,000), but still much higher than the rate of 9.1 per 100,000 soldiers in 2001.

The divorce rate is up 20-30%, suicide rates have doubled, and soldiers are apart from their families for repeated tours of duty. And that's just the effect on the families of soldiers who make it home. How can you measure the damage to a family when mom, dad, sister or brother does not come home from war?